7318222997 has 4 divisors (see below), whose sum is σ = 7321493760. Its totient is φ = 7314952236.

The previous prime is 7318222957. The next prime is 7318222999. The reversal of 7318222997 is 7992228137.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7318222997 - 2¹⁰ = 7318221973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7318222999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1632023 + ... + 1636500.

It is an arithmetic number, because the mean of its divisors is an integer number (1830373440).

Almost surely, 2^7318222997 is an apocalyptic number.

It is an amenable number.

7318222997 is a deficient number, since it is larger than the sum of its proper divisors (3270763).

7318222997 is a wasteful number, since it uses less digits than its factorization.

7318222997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270762.

The product of its digits is 762048, while the sum is 50.

The square root of 7318222997 is about 85546.6130071787. The cubic root of 7318222997 is about 1941.4902459031.

The spelling of 7318222997 in words is "seven billion, three hundred eighteen million, two hundred twenty-two thousand, nine hundred ninety-seven".